The wide receiver and seven other players were signed to the practice squad Sunday, a day after each was left off the Cowboys' final 53-man roster.
Among the others signed were cornerback Mike Mickens and receiver Manny Johnson, seventh-round draft picks. Defensive back DeAngelo Smith, the other Dallas draft pick who was cut, was claimed off waivers by the Cleveland Browns.
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Holley won Michael Irvin's reality TV show, which gave him the final spot on the training camp roster. He returned a punt 82 yards for a touchdown in the closing minutes to give Dallas a win over Minnesota in the final preseason game.